a_element.h

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/*
         Copyright 2010-2012 Pierre SMARS (smars@yuntech.edu.tw)
         This program is free software: you can redistribute it and/or modify
         it under the terms of the GNU General Public License as published by
         the Free Software Foundation, either version 2 of the License, or
         (at your option) any later version.
 
         This program is distributed in the hope that it will be useful,
         but WITHOUT ANY WARRANTY; without even the implied warranty of
         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
         GNU General Public License for more details.
 
         You should have received a copy of the GNU General Public License
         along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _A_ELEMENT_H_
#define _A_ELEMENT_H_
 
// .NAME a_element
// .SECTION Author
// Pierre Smars
 
class a_canvas;
 
#include "vtkActor.h"
#include "vtkPolyData.h"
#include "a_canvas.h"
#include <string>
#include <iostream>
#include <sstream>
#include <vector>
 
#include "a_point.h"
#include "a_image.h"
#include "a_text.h"
 
class a_element
{
        public:
                a_element();
                ~a_element();
                virtual void clear();
                virtual std::string type() const {return "a_element";}
                static const std::string help();
                void setcanvas(a_canvas & can) {can_ = & can;}
                void reset();
                void render();
                inline void name(std::string& aname) {name_ =aname;}
                inline std::string name() const {return name_;}
                inline bool empty() const {return polydata_->GetNumberOfCells() == 0;}
                void empty(const bool code) {empty_ = code;}
                void flushlog(); //copy the log information on the log file of a a_canvas when it is added to it 
                void color(double r, double g, double b);
                void R(double v);
                void G(double v);
                void B(double v);
                inline double R() const {return R_;}
                inline double G() const {return G_;}
                inline double B() const {return B_;}
                void thickness(const int);
                void greyscale(bool);
                void zebra(bool);
                bool greyscale() const;
                void steps(const int);
                int steps() const;
                inline int thickness() const {return thickness_;}
                inline vtkActor * actor() {return actor_;} //const?
                inline vtkPolyData * polydata() {return polydata_;} //const?
                inline bool operator==(const std::string& s) const {return name_==s;}
                inline bool operator!=(const std::string& s) const {return name_!=s;}
                void dxfout(std::ostream& o) const;
                inline void visibility(const int code) {actor_->SetVisibility(code);this->render();}
                inline bool isvisible() const           {return actor_->GetVisibility()==1;}
                inline bool isnotvisible() const {return actor_->GetVisibility()==0;}
                void opacity(const double val);
                void edges(const bool val);
                void smooth(const bool val);
                void relief(const a_point & p1, const a_point & p2);
 
                void image(a_image & image);
                void imageon();
                void imageoff();
                //: input/output
                friend  std::istream&   operator>> (std::istream& i, a_element& l);
                friend  std::ostream&   operator<< (std::ostream& o, const a_element& l);
                virtual void read(std::istream& in) {};
                virtual void write(std::ostream& o) const {};
                void open(const std::string& file);
                void save(const std::string& file);
                void save_transform(const std::string& file);
                void open_scalars(const std::string& file);
 
                void reset_mapper_clipping();
 
                void place(const double x, const double y, const double z);
                void translate(const double x, const double y, const double z);
                void origin(const double x, const double y, const double z);
                void orient(const double pitch, const double roll, const double yaw);
                void rotate(const double pitch, const double roll, const double yaw);
                void scale(double s);
                void scale(double s1, double s2, double s3);
                a_point place() const;
                a_point origin() const;
                a_point orient() const;
                double scale() const;
                double small() const {return small_;}
                void small(const double s) { small_=s;}
                a_point center() const;
                double size() const;
                double minx() const;
                double maxx() const;
                double miny() const;
                double maxy() const;
                double minz() const;
                double maxz() const;
 
        protected:
                void    logname();
                int     addpoint(const a_point& p);
                std::string                     name_;
                vtkActor *                      actor_;
                vtkPolyData *           polydata_;
                a_canvas *                      can_;
                a_image *                               image_;
                double                                  R_;                     //colors
                double                                  G_;
                double                                  B_;
                int                                                     thickness_;
                bool                                            empty_;
                std::vector<std::string>        log0_;
                void                            log(std::ostringstream& text);
                double                          small_;
};
 
inline bool operator==(a_element * l, const std::string s) {return (*l) ==s;}
inline bool operator!=(a_element * l, const std::string s) {return (*l) !=s;}
void delete_vector(std::vector<a_element *> &);
 
#endif